package com.DeptManage.service;

import com.DeptManage.entity.Student;
import com.baomidou.mybatisplus.extension.service.IService;
import org.springframework.stereotype.Service;

import java.util.List;


public interface StudentService   extends IService<Student> {
    public  int  getSum();
    public List<Student> getMax();
    public  List<Student> getSax();
}